Chair-dowel for building purposes.



PATENIBD 0012.15. 19o7.

w. H. WILSON. i

CHAIR DOWBL FOR BUILDING PURPOSES.

ArPLIoATIoN rILnn III-1.1113904.' I

' z SHEETS-SHEET 1.

Mnnmumll n n A llllll'l.

Hill

I fh

Inl/ent?? 77 z 'SHEETS-SHEET z.

Im/e'nto Y.

' PATBNTED 00T. I5, 1907.

' W. H. WILSON.

CHAIR DOWIIL PoR BUILDING PURPOSES.

APPLIoA'r'IoN FILED JULY 1I s Nomls PETERS co. wAsmNcroN o UNITED .sTATI'IsgPATENT OFFICE.-

WILLIAM HMWILSON, OF DALLAS, TEXAS.

CHAIR-DOWEL FOR BUILDING PURPOSES.

To all whom it may concern.' 1

Be it known that l, WILLIAM H. WILSON, a citizen of the United States, residing at Dallas, Texas, have invented certain new and useful Improvements in Chair- Dowels for Building Purposes, oi which the following is a specification.

My invention relates to building construction, and more particularly to chair dowels, and the object is to provide chair dowels for supporting columns and girders whereby the weight is supported directly on top of the columns instead of being placed on the sides of the columns by meansl of brackets. The brackets cornmonly used for this purpose are dispensed with and chairs are provided with suitable bearing surfaces on or against which the columns or girders are supported, and may be held in place by suitable bolts and dowels.

Other objects and advantages will be fully explained in the following description and the invention will be more particularly pointed out in the claims.

Reference is had to the accompanying drawings which lform a part of this application and specification.

Figure 1 is a plan view of a chair dowel for center girders. Fig. 2 isa side elevation of the same. Fig. 3 is a horizontal section of the same, taken along the line x cc of Fig. 2. Fig. 4 is an elevation of an end chair dowel for the central girders, and showing sections ofI-bearns in place and showing broken columns attached to the chair dowel. Fig. 5 is an edge view of the chair dowel as shown in Fig. 4. Fig. 6 is ahorizontal section of a rectangular column, illustrating the flange for attaching the column to the chair dowel. Fig. is a horizontal section, taken along the line y y of Fig. 4. Fig. 8 is an elevation of a chair dowel which may be used for wooden girders and columns, showing sections of two girders made of wood and also parts oi columns above and below the chair dowel. Fig. 9 is a horizontal section of the chair dowel shown in Fig. 8, the section be- 1ng inverted. Fig. l0 is the other part of the chair dowel shown in Fig. 8, this view being the sectional plan view. Fig. 11 is an inverted horizontal section of a side wall chair dowel or supporting single I-beam girders. Fig. 12 is an edge elevation of the same. Fig. 13 is a side elevation of the same. Fig. 14 is an elevation of a corner chair dowel. Fig. 15 is a similar view showing I-beams in place, one being broken and the other shown in cross-section. Fig. 16 is a horizontal section of the chair dowel shown in Fig. 14. Fig. 17 is an elevation of an end wall chair dowel, showing sections of I-beam girders and broken portions of colurnns above and below the chair dowel. Fig. 18 is a top plan view of a column provided with ange for attaching the same to the chair dowel. Fig. 19 is a sectional plan l Specicatidn of Letters Patent. Application filed July 11.1904. Serial No. 216.010.

Patented Oct. 15, 1907.

l view of a cylindrical column provided with flange for attaching the same to a chair dowel.

Similar characters oi reference are used to indicate the same parts throughout the several views.

The chair dowel consists of a head 1, a base 2, and a connecting web 3 all formed of a single casting. These three parts I prefer to cast in one piece. The head 1 may be cylindrical and the base 2 may be rectangular. The web 3 for the center columns and girders may have four wings at right angles to each other as shown in Figs. 2 and 3. The wings ol the web 3 will be determined by the position which the chair dowel is to occupy. The head 1 and the base 2 have holes 4 for bolts to be used in bolting columns to the chair dowel.

The manner oi attaching the columns to the chair is illustrated in Figs. 4, 5, and 7. The chair dowel shown in these three igures is or the ends of the central girders next to the wall. This dowel consists of the head 5, the web 7, and the base 6. The web 7 has a plurality of wings 8 and the girders 9 are placed on the base G between the wings 8. A column 1.0 having a base flange 11 is bolted to the head 5 by means of bolts 12. The girders or I-beams 8may be bolted in place by the bolts 13. A column 14 having a head flange 15 may be bolted to base 6 by means of bolts 16. The chair dowel is adapted for use with either rectangular or square or cylindrical columns. This chair dowel was intended especially for steel and iron building framework, but it is adapted for wood girders and co1- umns also. l

Figs. 8 to 10 inclusive illustrate a chair dowel adapted for use with wood girders and columns. The chair dowel4 shown in these Views has a head 17, a base 18, and a connecting web 19 which may have any number o wings arranged at an angle to each other. Fig. .8 shows girders 20 and columns 21 in place on the chair dowel. The head 17 has strengthening webs or braces 17 formed integral therewith.

Figs. 1l, 12,l and 13 illustrate a chair dowel or a side wall or single I-beams or girders. The chair dowel here shown has a head 22, a base 23, and a web 24 with y a wing 25. Column 26 is attached to the chair dowel by bolting the base iiange 27 to the head 22 by bolts 28 and column 29 is bolted to the chair dowel by bolt- .ing the flange 30 to the base 23 by means of bolts 3l.. The girder or I-beam 32 may be secured in place by bolt 33 which secures the I-beam to an angle iron 34 `which may be bolted to the wing 25. The head 22 is strengthened by downwardly inclined flanges` or webs 35 which are formed integral with the head.

dowel to be used for the corners o'buildings. The

Figsf14 to 1.6 inclusive illustrate the form of chair 1 0 ing the chair dowel.

2 5 lower Columns.

chair dowel here shown has a head 37 a base 38, a web 89 with wings 40, and a side projecting tiange 41. In reproof buildings channel iron or I-beams 42 for arches are attached to the iianges 4l. The girders 43 5 and the columns 44 are attached in the manner heretoy orwebs 45.

The various illustrations disclose different lorms of the chair dowel all oi which involve the same principle, each having a head for supporting a col umn above and to which the column is attached7 a connecting web With various wings forming the body of the chair dowel and to which the girders may be attached, and a base to which a supporting column may be attached. It will be noticed that the weight is always thrown directly on the supporting columns and vertically above the The girders project in the chair dowels so that the weight of the girders and all the weight thrown on the girders is supported directly in the line oi the columns. The usual brackets for attaching the girders to the columns are dispensed with. 1t will be noticed that eachgirder is independent of every other girder. Consequently when a girder is injuredy as by re. it can be removed and a new girder put in without disturbing anything but the particular girder taken out and the one put in.

It `is apparent that various other lorms of the chair dowel may be made without departing irom the principle of my invention.

Having iully described my invention, what 1 claim as new and desire to secure by Letters Patent. isf- 1. The combination of columns arranged one vertically above another and chair dowels for uniting the top of one column with the bottom of another column, eaeh dowel having' a horizontal portion consttutinga head and a horizontal portion constitutingv a base and said horizontal portions being connected b v webs which provide seats for the ends o1' girders and said dowels having upward and downward portions projecting within said eolumns.aiid said columns having,l ilanges bolted to said horizontal portions ot said dowel.

2. The combinatioirof columns one arranged above the other and each having horizontal tlanges, chair dowels` each uniting the top ot' one column with the bottom ot' another column, and girders with the ends thereof secured in said dowelsy said dowels having; heads attached to the bottom flanges of the columns and bases attached to the top flanges of the columns and having integral angular webs connecting said heads and bases and providing seats for said girders.

I. The combination of columns one arranged above the other and each having horizontal llana-es. chair dowels each uniting the top of one column with the bottom ot' another column, and girders with the ends thereot' secured in said dowels, said dowels havingl heads attached to the bottom tlanges ot' the columns and bases attached to the top tianges of the columns and having' llanges projectingr upwards and downwards in said columns and having; integral angular webs (aumen-tinel said heads and bases and providing seats for the ends of said girders.

In testimony whereof. I set'v my hand in the presence of two witnesses, this 129th day ot' Juno, ltlttl.

WM. ll. WILSON,

Witnesses:

J. R. Scorri-ain.

A. L. JACKsox. 

